Layout rev 0.2

Layout for rev 0.2 is complete, it’s PCBtrain time again.  I should get the boards before the bank holiday season starts next week.

Key changes to rev 0.2:

• Improved voltage and current monitoring on the isolated side
• Fixed Atmega PWM pin.
• Improved filtering on voltage rails – there is space for play here, with an excessive number of cap footprints.
• Different inductor – higher peak current, smaller package, lower price. Also lower isolation.
• Size is now 75mm x 50mm (was 60mm x 50mm)

• pcb